Parameter Configuration: Parameter configurations of the proposed setup are given in accordance with empirical inference. \(T\)  and \(K\)  are set to 3 and 5, respectively. Therefore, the spatio-temporal method encapsulates 150 ms frame interval to extract a compact representation. Similar optimum parameter setup can be observed in [1]} for action recognition problem. Also, [2]} shows that 150 ms frame interval is reasonable to assess micro-level emotional changes for real-fake expression prediction.
